Metallic door frame



March 31, 1925.

J. P. PEARSON METALLiC 000a FRAME Filed Dec. 10. 1924 INVENTOR.

TTQRNEY. 4

Patented Mar. 31, 1925.

UNITED STATES JOHN P. rEansoN. or LAPORTE, INDIANA.

METALLIC DOOR FRAME.

Application filed December 10, 1924. Serial No. 755,029.

To all whom it may concern:

Be it known that I, JOHN P. Pat-insole, a subject of the King of Sweden, residing at Laporte, in the county of La Porte and State of Indiana, have invented certain new and useful Improvements in Metallic Door Frames, of which the following is a specification.

The invention relates to metallic door frames and has for its object to provide a device of this character constructed ina manner whereby it is fire proof and will meet with the various regulations of various localities, and at the same time provided with means whereby the various fittings of the door, for instance the hinges and lock fixtures may be morticed into the frame at the time the frame is set, thereby obviating the necessity of the morticing operation to be done at the factory. The present practice is for the architect or builder to order the frames from the manufacturer, and when so done it is necessary for the architect or builder to furnish the manufacturer with specifications as to the exact location of the various positions for the mortices, and this is often overlooked, incorrectly given, and changes are necessary from time to time as the frame is set and the door hung. There the manufacturer is not notified as to the position of the different mortices, it is necessary for him to write for the specifications, and considerable delay and expense is entailed. For instance where there are changes made as to the location of fittings after the frame has been manufactured and prepared for shipment, the door frames will have to be remade in part at least, all of which involves additional labor, many details and considerable delay.

A further object is to provide, in combination with a door frame, a strip of wood or other material encased in thin metal, which may be easily cut with a chisel for mortice purposes for the reception of hinges and door fittings, thereby allowing the builder to mortice the door fittings into the door frame when the door is hung, thereby obviating the necessity of furnishing specifications as to the location of the various mortice positions when ordering the frames.

A further object is to secure the strip of wood or other material to the door frame by means of struck out prongs, struck out from the adjacent walls of the frame and imbedded in the wooden strip. Also to secure the metal sheathing on the strip by means of struck in prongs. The wooden strip also allows the hinges and fittings to be secured to the-door frame by means of Wood screws,

and the sheathing forms a fire tection for the wooden strips.

With the above and other objectsin view the invention resides in the combination and arrangement of parts as hereinafter set forth, shown in the drawing, describedand claimed, it being understood that changes in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawing:

Figure 1 is a front elevation of the door frame.

Figure 2 is a horizontal sectional view through one, side of the door frame taken on line 22 of Figure 1, and showing a door attached thereto.

proof pro- Referring to the drawing, the numeral 1 from manufacturers, and it has been necessary for the builder or contractor to furnish the manufacturer with specifications as to the location of various positions for morticing for the door fittings, for instance hinges and locks, and which has been very unsatisfactory, causing delay, loss of material, and considerable expense incident thereto. To obviate this difliculty and be able to ship the frames so that the mortices may be made after the frames are set, and at the same time meet the fire regulations of various localities, has presented a problem to manufacturers of metallic frames. To accomplish the above result the side members 5 and top 6 of the frame have been provided with wooden strips 7, which strips are preferably rectangular shaped in horizontal cross section, and engage the angularly disposed walls 8of the frame, as clearly shown in Figure 2. The wooden strips 7 are secured to the walls 8 by means of inwardly struck prongs 9 of the walls 8, however said strips may be connected to the frame by other securing means.

The outensides ofmhe strips rare covered with sheet metal sheathing 10, which is pref erably formed from. a thin material which is sufficiently thin whereby-it maybe :severed or cut with a chisel for morticing the leaves 11 of the hinges 12 into the strip. Shea-thing 10, although thin is sufficiently heavy to render the strips 7 fireproof,-thereby not die tracting in an Way from the fireproof qualitie'sof the door frame. Sheathing 10 maybe secured to the wooden strip 7 by means of strucl'i-inprongs 13, and it will be seen'that by providing the wooden strips 7, conventional forms of wood screws It may be utilized for securing the hinge to the strip when'hangingthe door 15. I

From the above it will be seen that a metallicdoor fram'eis provided with means whereby it will not be necessary for the frame to be morticedat specific places during the course of manufacture, and the inorticing operation may take place at the time of hanging the doors in substantially the same manner as is now the practice when hanging doors :to wooden frames, after ,the frames have been set. It will also be seen that it will not be necessary for thebuilder or contractor to furnish specifications as to locationof mortices, and considerable delay, loss of time, labor, and material is obviated.

The invention having been set forth what is claimed as new,and useful is 1. The combination with a side member of a metallic door frame, of a wooden strip carried by said side member and attached thereto, and a sheathing encasing the outer side of said wooden strip.

2. The combination with a side nrember of, a metallic door frame, of a wooden strip carried by said side member, a metallic sheathing encasing the outer side of said wooden strip, said metallic sheathing being relatively thin and t'o-rn'ied from severable material whereby morticesmay-be formed in the wooden strip.

3. The combination with a side member of a. metallic door frame, of a wooden strip carried by said side member, a metallic sheathing encasing the outer side of said wooden strip, said-sheathing being formed from severable material, whereby mortices may be formed in said sheathing and wooden strip.

a. The combination with a side member of a metallic door frame, of a ,wooden strip carried by said member, a metallic sheathing encasing the outer side of the strip, said strip being formed from severable material whereby inortices may be formed in said sheathing an d wooden strip forthereception of a hinge leaf, said woodenst-rip allowing said hinge leaf to be attached by means of wood screws.

The combination with ,the side member of a metallic door frame, and angularly disposed channel in said door frame, of a wood-- en strip disposed in said channel, struck out lugs carried by the side member andimbedded in the wooden strip, ,a ,severable metallic sheathing encasing theouter side of the strip, said sheathing being secured to the wooden strip, said sheathing being formed from severable material and forming means whereby a mortiee may be formed in the sheathingandthe wooden strip and forming a fire proof protection for the wooden strip.

6. The combination with a {metallic door frame, of a wooden strip carried by said frame, and a relatively thin metallic sheathing encasing the wooden strip andseverable by an edged tool whereby mortises may be formed in saidsheathing and woodenstrip.

In testimony whereof I afiixiny signature.

JOHN P. PEARSON. 

